Thanks so much. I thought about the fabric softener but someone told me it wouldn't work. This happened at a laundromat

You can soak the blankets in a sink or tub with fabric softener or even hair conditioner mixed in the water and then rewash. I do this with yarn that's rough.

I just want to add, if the clothes are actually getting burnt or melting at all, try to get your dryer checked. Your dryer may be malfunctioning and it's a fire hazard.

Just try rewashing them and use fabric softener.